superjon 0 Posted January 31, 2015 I need some recommendations for a friend of mine. He owns a small business. We are getting ready to install an IP camera system with an NVR. The equipment we originally quoted includes the following NVR and cams: -Dahua NOVR 4116-8p -Six Dahua Dome Cams, HDW4300S -Five Dahua Bullet Cams, HFW4300S He accepted the quote. However, he contacted me yesterday and wanted to know if there was a reasonable way to add two way communication through this system. Basically, from a cell phone app, he wants to be able to hear what's going on at that location, and also be able to press a button in the app on his smart phone to allow him to reply back to the shop. Currently, I am planning on using the iDMSS Lite app from Dahua which I notice has the commands built in for listening and replying. What we are not looking for is a front door camera/intercom wall plate. Rather, something that is integrated into this system where we could possibly mount an external speaker (amplified..?) and mic that would plug into an IP camera that is equipped for these connections. The key requirements here are 1) it needs to be able to work through the IP camera system and 2) listening and replying needs to be able to be done via the app where the camera video feed is viewed from. Does Dahua make a camera that would work in this system and would be two way audio capable? I am open to replacing a camera with a different one that supports two way audio as long as the camera video is adequate for the need. Let me know your thoughts! Thanks, Jon Share this post Link to post Share on other sites
tomcctv 187 Posted January 31, 2015 Hi. You don't need to find a camera with audio Just a standard mic and speaker will do the job Share this post Link to post Share on other sites
superjon 0 Posted January 31, 2015 Hi. You don't need to find a camera with audio Just a standard mic and speaker will do the job Sourcing a mic and a speaker is easy. How do I integrated them into the network camera system so that they can used via the camera app buttons on a smartphone from remote locations? Thanks, Jon Share this post Link to post Share on other sites
tomcctv 187 Posted January 31, 2015 Hi Jon You only have audio in and out on that NVR RCA CONNECTION on back of unit So only thing you have to do is use channal 1 camera at the location audio is to be used. Just use cat5 or alarm cable for mic and speaker. Share this post Link to post Share on other sites
superjon 0 Posted January 31, 2015 Hi Jon You only have audio in and out on that NVR RCA CONNECTION on back of unit So only thing you have to do is use channal 1 camera at the location audio is to be used. Just use cat5 or alarm cable for mic and speaker. Let me see if I can reiterate what you're explaining just to make sure I have it clearly... I will hook up a mic and speaker to the NVR RCA connections on the rear of the NVR. Then, once connected, I will be able to listen/talk using the iDMSS app, specifically, on Channel 1. I assume that the audio will be in addition to the video feed on channel 1, correct? Also, will the audio be recorded on the hard drive under channel 1? Jon Share this post Link to post Share on other sites
tomcctv 187 Posted January 31, 2015 Hi yes that's right Audio will play back as well on all remote software along with cam 1 And it does work well. We use $9 mics and there range is good Share this post Link to post Share on other sites
superjon 0 Posted January 31, 2015 Hi yes that's right Audio will play back as well on all remote software along with cam 1 And it does work well. We use $9 mics and there range is good Does the mic need to be powered? And, you said the audio will be recorded on the NVR on channel 1? Share this post Link to post Share on other sites
tomcctv 187 Posted January 31, 2015 Yes you need a powered mic Yes cam 1 video will also have the audio recordings Share this post Link to post Share on other sites
superjon 0 Posted January 31, 2015 Many thanks for your help! Share this post Link to post Share on other sites
